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Computer Science > Information Theory

arXiv:1809.08994 (cs)
[Submitted on 24 Sep 2018]

Title:Fundamental Limits of Spectrum Sharing for NOMA-based Cooperative Relaying

Authors:Vaibhav Kumar, Barry Cardiff, Mark. F. Flanagan
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Abstract:Non-orthogonal multiple access (NOMA) and spectrum sharing (SS) are two emerging multiple access technologies for efficient spectrum utilization in the fifth-generation (5G) wireless communications standard. In this paper, we present a closed-form analysis of the average achievable sum-rate and outage probability for a NOMA-based cooperative relaying system (CRS) in an underlay spectrum sharing scenario. We consider a peak interference constraint, where the interference inflicted by the secondary (unlicensed) network on the primary-user (licensed) receiver (PU-Rx) should be less than a predetermined threshold. We show that the CRS-NOMA outperforms the CRS with conventional orthogonal multiple access (OMA) for large values of peak interference power at the PU-Rx.
Comments: 3 figures, Accepted for presentation in GLOBECOM-NOMAT5G workshop, Abu Dhabi, 2018
Subjects: Information Theory (cs.IT)
Cite as: arXiv:1809.08994 [cs.IT]
  (or arXiv:1809.08994v1 [cs.IT] for this version)
  https://doi.org/10.48550/arXiv.1809.08994

Submission history

From: Vaibhav Kumar [view email]
[v1] Mon, 24 Sep 2018 15:18:12 UTC (531 KB)
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